Reenforcing furring strip



Patented Nov. 17, 1936 REENFORCING FURRING STRIP Dale A. Stafford, Glendale, Calif., assignor of twenty-live per cent to Paul E. Hanger, Los

Angeles, Calif.

Application October 7, 1935, Serial No. 43,853

6 Claims. (Cl. 'i2- 118) This invention is a furring strip for application to building, structural elements.

More particularly the invention is a foraminous strip of a material which is sufficiently stiff or firm to ably withstand pressure, after the strip has been applied to a support, so that when a plastic covering is applied it will interkey in the stiff body of the strip.

An object of the invention is to provide a furring device which will supplant all forms of special furring nails commonly employed to space and secure plaster holding wire-netting on tarpapered or solid sheeted, wall plaster jobs; which will materially reduce labor and material costs; which will act as a furring means and at the same time reenforce the layer of plaster adjacent to the applied device, especially where this is secured along wall studs, where, as a usual incident, the plaster coat is thinner than between 20 studs if the coat is applied to tar paper stretched from stud to stud in a wall frame.

A further object is to provide a device which affords a continuous line of furring vertically or horizontally, as the case may be, for effecting a uniform gage on which the netting wire is laid, in contrast to the usual line of widely spaced gages afforded by furring nails which allow the netting to be flexed in zones entirely around each nail.

30 An additional object is to provide a highly economical furring strip and a method for its manufacture, preferably without waste of material in its production.

The invention consists in certain advancements 35 in the method and application of this art as set forth in the ensuing disclosure and having, with the above, additional objects and advantages as hereinafter developed, and whose construction, combination and details of means, and the manner of operation will be made manifest in the description of the herewith illustrative embodiment; it being understood that modications, variations and adaptations may be resorted to within the scope, principle and spirit of the invention as it is more directly claimed hereinbelow. It is understood that the functional use of the apparatus of this disclosure in any other art than that herein set forth is deemed to be within the adaptation of the invention.

In the drawing:

Figure 1 is a face view of strip.

Figure 2 is a longitudinal view of an applied strip, and

Figure 3 is a cross-section on line 3-3, Figure 1.

a fragment of the Figure 4 is a plan of a corner bead strip.

Figure 5 is a front View of a sheet incorporating the invention, and

Figure 6 is an edge view thereof, in the direction of arrow B, Figure 5. 5

The invention may be embodied in either a strip A, Figure l, or in a sheet B, Figure 5.

rPhe sheet or the strip may be made in any suitable dimensions and of any suitable material which is characterized by a sufficient degree of 10 stiiness to achieve its intended function.

It is common to fasten what is called hog or chicken wire netting over tar paper or solid sheeted wall structures for reception of plaster, and furring nails are used to space the netting 15 out enough to form key room under the wire strands.

It is slow work to apply this netting with these nails. Also in tar paper jobs the plaster along wall studs tends to crack after a period of time.

This strip or sheet of this invention is so made that it presents a series of close corrugations 2 transversely across its front face, Figure 1, and, though the strip or sheet as a whole may be of liexible material, such as galvanized sheet iron, the corrugations are themselves stiff, especially so when the strip or sheet is laid on a rm support, such as a wall stud, S, along which the applied strip lies smoothly and continuously for its length. The applied and plastered furring greatly reenforces the studding.

A distinct advantage of this furring device is that the corrugations form valleys for a good depth of plaster, and in order to increase the attaching or keying eifect of the plaster P, Figure 4, the ridges of the corrugations are punctured to provide longitudinal slots 3 in which the p-laster will flow to form keys.

Preferably the slots 3 are obtained by so operating on the strip material that this is slit or 4,0 ripped without waste of material and the displaced material at the slot is pressed outward to form parallel lips 4-4 beyond the ridges of the corrugations 2, thus increasing the effective depth of the corrugated strip without an equal depth of corrugation and so saving in the total amount of material in strip length, as would be needed if the corrugations were made of the over all depth.

The protruded lips 4-4 form a substantial, 50 uniform gage for holding applied netting outward from the face of tar paper T, Figure 2, on stud S.

Preferably the corrugations 2 run diagonally of the strip or sheet, not only alordng a greater area for plaster keying but also tending to preclude the strands of wire of netting from entering the slots 3, as might occur were the strands parallel to and immediately over the slots.

Figure 1 shows a stripof about full scale size with corrugations running from edge to edge.

In Figure 5 is shown the sheet B suitably produced with parallel rows of the corrugated areas C separated by plane areas D which may be cut on medial line E to produce narrow strips from the sheet B, or the sheet may be used intact for plastering if desired.

Thus the method is to press, roll, stamp or otherwise shape the stock to form frontal corrugations, of suitable depth and width, preferably diagonal to side lines of the stock, in strip or sheet, and to perforate the ridge of the corrugations, preferably in a manner to form a slit or rip Without waste of material, and to displace the edges of the aperture and form therealong generally parallel, outward lips along the ridges of the corrugations, thereby forming keying slots for plaster and spacing gages for applied wire netting.

While the device may be made of any suitable material, sheet or strip stock is most appropriate because corrugation of both sides produces valleys in the surface of the material as the antithesis for the frontal ridges and provides key space at the back of the applied strip.

It is conceivable that the furring device may be made of a castable or moldable composition or other stock material, for instance, paper pulp of suitable strength.

In use of the furring it is laid upon or along a xed supporting media, as paper T, and the usual wire netting is stretched tightly over the furred wall and common nails are inserted, at suitable intervals along the furring, into the slots and the nails are then clinched over the wire by bending down.

The Obliquity and arrangement of the frontal ridges is such as to form a continuous plane across the row of corrugations from end to end thereof.

What is claimed is:

l. A sheet of material having spaced, parallel, frontal areas of corrugations; said corrugated areas each including a row of longitudinally slotted ridges which are oblique to the length of the row and are so arranged as to form a continuous plane across each row from end to end of the row.

2. A sheet of material having spaced, parallel, frontal rows of corrugations which latter are diagonal to the length of their rows and whose ridges are longitudinally slotted and form a continuous plane across and along the row.

3. A sheet of material having spaced, parallel, frontal areas of corrugations which have longitudinally slotted ridges which are oblique to the length of their said area and form a continuous ridge plane along and across their said areas.

4. A furring device consisting of strip having corrugations which are diagonal to the length of the strip and have elongated apertures which extend nearly to the ends of the ridges of the corrugations and out-turned lips along their edges.

5. A device as set forth in claim 4 and in which the Obliquity of the corrugations is such that the upper end of each corrugation is in a transverse line above the lower end of its next higher corrugation; whereby to form a continuous plane of ridges transversely across the strip.

6. A furring device consisting of a strip having corrugations which are diagonal to the length of the strip and present frontal ridges having suitable apertures which provide for How of mobile material to the rear of the ridges to form keys of the said material between the rearward ridges of the strip when this is aixed on a base; the corrugations being relatively shallow as compared to the Width of the strip and their rearward ridges forming contacts wit-h the said base.

DALE A. STAFFORD. 

